Oracle: enable UTL_FILE.PUT_LINE to write output to a file

Today I wanted to log some database output to a text file with UTL_FILE.PUT_LINE but when I called this procedure:

  1.   file UTL_FILE.file_type;
  2.   file := UTL_FILE.fopen(‚/tmp‘, ‚test.txt‘, ‚A‘);
  3.   UTL_FILE.put_line(file, line);
  4.   UTL_FILE.fflush(file);
  5.   UTL_FILE.fclose(file);
  6.   DBMS_OUTPUT.put_line(line);
  7. END writeLog;

it produced an ORA-29280 error: invalid directory path:

ORA-29280: invalid directory path
ORA-06512: in "SYS.UTL_FILE", line 29
ORA-06512: in "SYS.UTL_FILE", line 448
ORA-06512: in "AOM.WRITELOG", line 5

Apparently, you need to set the list of file system directories Oracle is allowed to write to (parameter UTL_FILE_DIR) in the database’s configuration. I found this article describing the needed action: Initialization Parameter files: PFILEs vs. SPFILEs.

After entering this simple command and restarting the database it worked:

  1. ALTER SYSTEM SET utl_file_dir=‚/tmp‘ SCOPE=BOTH;

Über uns Stefan

Polyglot Clean Code Developer

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